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Diffstat (limited to 'usr.bin/learn/lib/files/L12.1a')
| -rw-r--r-- | usr.bin/learn/lib/files/L12.1a | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/usr.bin/learn/lib/files/L12.1a b/usr.bin/learn/lib/files/L12.1a new file mode 100644 index 00000000000..5cd4f7c3d54 --- /dev/null +++ b/usr.bin/learn/lib/files/L12.1a @@ -0,0 +1,42 @@ +#print +Another very useful command is the command + diff x y +which compares two files. It will not print +any output if the two files are the same, but +if the files are different it will print +out the lines that are changed in the two files, +indicating the lines from the first file (x) by a leading "<" +and the lines from the second file (y) by a leading ">". +There are two files in this directory named "old" and "new". +Why don't you first print both files, and then +try using "diff" to compare them? Suppose the files +were hundreds of lines long, and you needed to know +the single difference - do you see how valuable "diff" can be? +As evidence that you did at least half of this, +type "answer word" where "word" is the word added to the +second file. +#create new +Four score and seven +years ago our fathers +brought forth on this +continent a new nation, +conceived in liberty +and dedicated to the +proposition that all +men are created equal. +#create old +Four score and seven +years ago our fathers +brought forth on this +continent a new nation, +conceived in liberty +and dedicated the +proposition that all +men are created equal. +#copyin +#user +#uncopyin +#match to +#log +#next +13.1a |